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Home >> Mercedes Benz >> 2021 >> GLB250 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crank Assembly - 247 Chassis >> Testing & Repair >> Remove/Install Retaining Lock For Crankshaft/Ring Gear - AR03.30-P-5000MFC

Remove/Install Retaining Lock For Crankshaft/Ring Gear - AR03.30-P-5000MFC

Engine 260 in model 118, 177, 247 

MODIFICATION NOTES

30.10.2019 Document completely revised.    

Shown on model 177 without code M016 (performance-enhanced engine) 

G14688285Courtesy of MERCEDES-BENZ USA
G14688286Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Install/remove     
1.1 Remove starter (M1). When work is performed with installed transmission.  
      AR15.30-P-7100MFC
1.2 Remove transmission. When work is performed with transmission removed.  
    Engine 260 in model 118, 177, 247 with transmission 724.1 AR01.10-P-2401MFJ
    Engine 260 in model 118, 177, 247 with transmission 724.0 AR01.10-P-2401MFC
2.1 Rotate the engine at the center bolt of the crankshaft in the direction of engine rotation and check the toothing of the starter ring gear (1) for wear or damage. With installed transmission.  
    SPECIAL TOOL Socket wrench bit
If there are problems,

Replace drive plate.
Fig 3
    Engine 260 in model 118, 177, 247 with transmission 724.0 AR03.30-P-8001MFC
    Engine 260 in model 118, 177, 247 with transmission 724.1 AR03.30-P-8001MFI 
2.2 Check the starter ring gear (1) for wear or damage. With removed transmission.
If there are problems,

Replace drive plate.
 
    Engine 260 in model 118, 177, 247 with transmission 724.0 AR03.30-P-8001MFC
    Engine 260 in model 118, 177, 247 with transmission 724.1 AR03.30-P-8001MFI 
3.1 Insert retaining lock (01) in starter opening until it engages with the starter ring gear (1). With installed transmission.  
    SPECIAL TOOL Retaining lock Fig 1
3.2 Install the retaining lock (02) on the crankcase With removed transmission.  
    SPECIAL TOOL Retaining lock Fig 2
4 Removal in the reverse order.    
Fig 1: Identifying Retaining Lock (270 589 00 40 00)
G10250108Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Retaining Lock (270 589 03 40 00)
G14688288Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Socket Wrench Bit (001 589 65 09 00)
G09981907Courtesy of MERCEDES-BENZ USA